Re: Honda "Express"ing difficulty...

Joe Woods /
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That pinging is a mystery.. and finding it's source seems far more important than tracking down the reason for the bad idle.

If there was no head-work compression ratio should be nearly the same... the head is not packed with carbon .. The new piston could be making contact with the head?

Rod bearing condition is unknown (to me) but if they're bad enough, who knows.. the noise would resemble a pinging or knocking.

But this noise happens only after it's warmed up and the result is the engine dies. I'd say its all related. Something is changing in the hot engine. Friction rises, a knocking noise develops, idle slows and the engine finally dies.

Something mechanical ain't right. I would not give up searching for it's source and continue the break-in as if everything were ok just yet.

Try one little test.

Remove the head, fasten the cylinder back down with a couple head bolts (use a stack of washers or tubing to "shorten" the head bolts).

Turn the flywheel so the piston rises and slightly passes over TDC. Then hit the piston crown with the heel of your hand. If you hear a distinctive "click" the rod bearings are probably gone. That could be the source of the pinging noise.

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Subject Written By Posted
  Honda "Express"ing difficulty...Topic by: James Foster James Foster 02/25/05 11:22PM
  Re: Honda "Express"ing difficulty...Re: Dan Adams (50:1) Dan Adams (50:1) 02/25/05 11:39PM
  Re: Honda "Express"ing difficulty...Re: James Foster James Foster 02/25/05 11:57PM
  Re: Honda "Express"ing difficulty...Re: Joe Woods Joe Woods 02/26/05 12:18AM
  Re: Honda "Express"ing difficulty...Re: Jonas Quimby Jonas Quimby 02/26/05 08:17AM
  Re: Honda "Express"ing difficulty...Re: James Foster James Foster 02/26/05 12:41AM
  Re: Honda "Express"ing difficulty...Re: James Foster James Foster 02/26/05 10:44AM
  Re: Honda "Express"ing difficulty...Re: Jason Luther Jason Luther 02/26/05 04:58PM
  Re: Honda "Express"ing difficulty...Re: James Foster James Foster 02/26/05 05:36PM
  Re: Honda "Express"ing difficulty...Re: Joe Woods Joe Woods 02/26/05 05:46PM
  Re: Honda "Express"ing difficulty...Re: Jonas Quimby Jonas Quimby 02/26/05 09:32PM
  Re: Honda "Express"ing difficulty...Re: James Foster James Foster 02/26/05 08:53PM
  Re: Honda "Express"ing difficulty...Re: Joe Woods Joe Woods 02/26/05 09:42PM
  Re: Honda "Express"ing difficulty...Re: James Foster James Foster 02/26/05 11:10PM
  Re: Honda "Express"ing difficulty...Re: Joe Woods Joe Woods 02/26/05 11:55PM
  Re: Honda "Express"ing difficulty...Re: James Foster James Foster 02/27/05 12:39AM
  Re: Honda "Express"ing difficulty...Re: James Foster James Foster 02/27/05 08:05PM
  Re: Honda "Express"ing difficulty...Re: Joe Woods Joe Woods 02/27/05 08:57PM
  Re: Honda "Express"ing difficulty...Re: James Foster James Foster 02/27/05 10:29PM
  Re: Honda "Express"ing difficulty...Re: Jonas Quimby Jonas Quimby 02/28/05 04:52AM
  Re: Honda "Express"ing difficulty...Re: James Foster James Foster 02/28/05 10:44AM
  Re: Honda "Express"ing difficulty...Re: Joe Woods Joe Woods 02/28/05 07:01PM
  Re: Honda "Express"ing difficulty...Re: James Foster James Foster 02/28/05 08:44PM
  Re: Honda "Express"ing difficulty...Re: Joe Woods Joe Woods 02/28/05 09:02PM
  Re: Honda "Express"ing difficulty...Re: James Foster James Foster 02/28/05 11:03PM
  Re: Honda "Express"ing difficulty...Re: Joe Woods Joe Woods 02/28/05 11:21PM
  Re: Honda "Express"ing difficulty...Re: James Foster James Foster 02/28/05 11:40PM

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